code: def setUp(self):
      ops = getattr(F, self.op_name)
      self.model = Model(ops, self.args, self.cover_all)
      self.x = input_generator.increasing(*self.in_shape)
  
file_path: chainer/tests/onnx_chainer_tests/functions_tests/test_poolings.py
imports: import chainer
  import chainer.functions
  from chainer import testing
  import numpy
  from onnx_chainer.testing import input_generator
  from onnx_chainer_tests.helper import ONNXModelTest
label_desc: Use image node_id 1 for calling the TestPoolings obj's underlying member method code with example usage: obj.setUp() without return types